Hillslope position

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August undefined, 2024

WebWe investigated the influence of hillslope scale topographic characteristics and the relative position of hillslopes along streams (i.e., internal catchment structure) on the isotopic composition ... WebDec 1, 2009 · Two adjacent sites were selected, consisting of a natural forest and deforested cultivated land on a loess hillslope located in Agh-Su watershed, Kalaleh area of Golestan (55°27′–55°42′E, 37°22′–37°29′N) Northeast of Iran (Fig. 1), with an average annual temperature of 16 °C and 650 mm of precipitation.The parent material is composed …

Shifts in root dynamics along a hillslope in a mixed

WebNov 2, 2024 · We used two years of field observations of volumetric soil moisture at three depths (15, 30, and 100 cm) across five topographic positions (riparian, toeslope, sideslope, shoulder, and ridge) along three hillslope transects to better understand how soil moisture changes with hillslope position and through time. WebDec 1, 2024 · ANOVA was also performed to determine the effect of different hillslope positions on the infiltration capacity, preferential flow indices, and root biomass. A two … try tennis greenville nc

Spatial Variability of Some Soil Physical Properties on Semi-Arid ...

WebMost soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values … WebChapter structure. Hillslopes are an almost universal landform, occupying some 90% of the land surface. In hilly and mountainous regions, long-term downslope movement of soil on hillslopes can play a crucial role governing the rate at which landscape evolves through time. Although river incision is often considered to mainly drive landscape ... WebThe hillslope position grid produced by this classification tool uses the following codes: 1 = summit 2 = shoulder 3 = backslope 4 = footslope 5 = toeslope. Landscape analysis of hillslope position will not result in a full sequence of positions for all slopes. Instead, each grid cell is classified by its contextual shape meeting specified ... tryterminate

Evolution of debris flow activities in the epicentral area, 10 years ...

Impacts of oak deforestation and rainfed cultivation on soil ...

WebMay 24, 2024 · Specific results per land-use and hillslope position. Table 1 presents the descriptive statistics of 137 Cs measurements, physicochemical parameters, and soil … WebAug 13, 2024 · For the four hillslope positions, Shale Hills had higher preferential flow frequencies compared to Garner Run. Between these two catchments, the South-facing mid-slope sites showed the highest contrasts in preferential flow frequency (33.5% of events at Shale Hills vs. 8.8% at Garner Run) while the ridge-top sites showed the lowest contrasts ... try tennis greensboroWebMay 5, 2024 · Using minirhizotron observations from 150 tubes located at 50 sites strategically placed at different hillslope positions across a first-order catchment, we examined how position along a hillslope impacts fine root dynamics. Results. Contrary to our hypotheses, we found no significant hillslope effects on fine root tip production or … phillips 66 product cross reference

"WebJan 1, 2024 · At the hillslope scale, the upper slope position yields material, transport is dominant at the backslope section, and at the footslope part the sedimentation is … " - Hillslope position

Hillslope position

Topographical Controls on Hillslope‐Scale Hydrology Drive Shrub ...

WebSince inflection points in slope–area space are thought to indicate changes in process between diffusive hillslope processes and advective fluvial processes at a saturation threshold (Tucker and Bras, 1998; Clubb et al., 2016), these failures probably represent hillslope positions that failed at saturation when throughflow was high. WebOct 21, 2024 · Assessment of the variation of soil erosion and sediment mobilization at different hillslope positions using the 137Cs tracing technique has been carried out for the Dapotou closed watershed, a representative depression in the karst gabin basin in Southwest China. The results showed that the annual soil erosion rates in the shoulders, …

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WebMost soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values ... WebThe ecologically-relevant geophysical (ERGo) landforms dataset is a comprehensive classification of landforms based on hillslope position and dominant physical processes that covers most of North America. Four hillslope positions form a natural sequence of topographic units along the catena: ridges/peaks (summits), upper slopes (shoulders), …

WebMar 1, 2024 · Hillslope position can influence the SCEP via redistribution of precipitation, soil erosion, and deposition of exogenous materials [32,44]. In our study, the surface soil CEC at the backslope was significantly lower than that at the summit and footslope due to surface runoff erosion. WebDec 1, 2024 · The hillslope is an essential natural spatial gradient that influences hydrological processes by affecting water distribution, surface flow, soil erosion, and groundwater recharge. ... Differences in the hydraulic processes of each hillslope position contributed to the redistribution, transportation, and storage of surface and belowground …

WebFeb 10, 2024 · On the one hand, the CT position is the uppermost position of the hillslope and a large amount of clay can be transported to downslope positions by surface run-off with the result that soil structure at the CT position becomes more compact. Therefore, the highest clay content appeared at the FV position. WebAug 13, 2024 · For the four hillslope positions, Shale Hills had higher preferential flow frequencies compared to Garner Run. Between these two catchments, the South-facing …

WebJan 17, 2024 · The subplots for soil erosion assessment with SfM, installed at the upper, middle, and footslope position of the hillslope differed with respect to slope inclination. After correcting the mean soil surface elevation changes of these plots by using predicted bulk density changes, the elevation changes were generally smaller as compared to the ... try tennis ncWebThe term soil catena is used to describe the lateral variation in soils over a hillslope. A slope can be broken into sections known as a ridge, crest, midslope, and toeslope. The ridge or hilltop tends to accumulate organic matter that allows formation of … phillips 66 powerflow nzWebApr 6, 2024 · There is a lack of information about the hydrological effects of spatial harvest patterns in terms of their effects on streamflow. In this paper, we examined harvest amount and hillslope position effects on flow indices (Q70; Q50 and Q10) and water yield in a small catchment covered with a fast-growing Eucalyptus plantation. phillips 66 proxy 2022WebJan 13, 2015 · Hillslope position has long been important in soil geomorphology. At the scale of county-level soil maps, more soil boundaries are based on topography than any … phillips 66 powertranWebDec 1, 2024 · One-way analysis of variance (ANOVA) was conducted to assess the differences in the physical properties between the various soil layers and the different hillslope positions (Lix et al., 1996). ANOVA was also performed to determine the effect of different hillslope positions on the infiltration capacity, preferential flow indices, and root … try tennis hawaiiWebJan 13, 2015 · Hillslope position has long been important in soil geomorphology. At the scale of county-level soil maps, more soil boundaries are based on topography than any … phillips 66 overland parkWebAug 31, 2016 · The meaning of HILLSLOPE is hillside. Recent Examples on the Web Is the hillslope stable behind the place? — Erik Klemetti, Discover Magazine, 31 Aug. 2016 In … phillips 66 proxy 2021